JPH0223090Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a differential drive mechanism using a motor that can be applied to various devices.

[Conventional technology]

Conventionally, in DC or AC motors,
In use, the motor body containing the stator is fixed and the load is rotationally driven only by its output shaft, which naturally limits its range of use.

[The problem that the idea attempts to solve]

Conventional motors have had the problems described above.

Therefore, the present invention expands the scope of use by configuring the motor body to be held without fixing it during use.
The object of the present invention is to provide a differential drive mechanism with a simple configuration that can perform individual functions and provide a wide variety of rotational torques.

[Means to solve the problem]

The present invention has a rising wall 3 of an inverted E-shaped frame 3.
The motor body 1 is floated and placed between the walls 3a and 3c, and the output shaft 2 of the motor body 1 is connected to the rising walls 3a, 3c.
Slip rings 6, 7 support the motor body by supporting the motor body by supporting the motor body by supporting the motor body with bearings 4, 5 installed on the shaft 3b, and supply drive current to the rotating stator and rotor on the inner surfaces of the rising walls 3b, 3c. We solved the above problem by using a differential drive mechanism that is equipped with a.

[Effect]

The motor body 1 has an output shaft 2 with bearings 4 and 5.
Since it is pivotally supported by, it is rotatable, and rotational force can be output not only from the output shaft 2 but also from the motor body 1. Electric current is supplied to the motor body 1 via slip rings 6, 7 fixed to the rising walls 3b, 3c.

〔Example〕

The drawings illustrate embodiments of the invention. In the figure, 1 is the motor body, and the type of motor does not particularly matter. 2 is an output shaft derived from a rotor within the motor body 1. Reference numeral 3 denotes an inverted E-shaped frame that supports the motor body 1, and in the case of the illustrated power supply method, the first half thereof, that is, the rising wall 3a,
3b side and the rear half, that is, the rising walls 3b and 3c sides are insulated. 4 and 5 are bearings into which the output shaft 2 is inserted, and are installed on the rising walls 3b and 3c, respectively.
Reference numerals 6 and 7 denote slip rings that are in contact with the rotating stator and rotor to supply a driving current, and are attached to the rising walls 3b and 3c. The slip rings 6, 7 may be as in a synchronous motor. Motor body 1 and output shaft 2
Any method can be used to obtain the rotational torque from
For example, from motor body 1, motor body 1
This may be done by directly wrapping a belt or the like around the motor body 1, or by wrapping it around the output shaft 2 from the motor body 1 (Fig. 2), or by extending the output tube 10 in the opposite direction to the output shaft 2 (Fig. 2). (Fig. 3), the rotational torque may be obtained from this. Furthermore, in order to relatively change the rotational torque of the motor body 1 and the output shaft 2, it is sufficient to adjust the degree of braking for them. In that case, the braking method is also arbitrary (usually by friction method).

Next, the operation of the present invention will be described. When driving current is supplied to the stator and rotor through the lead wires 8 and 9, the motor body 1 and the output shaft 2 start rotating in opposite directions. At this time, when the motor body 1 is in a fixed state, the output shaft 2 applies the entire output torque of the motor body 1 to a load (not shown).
On the other hand, if the load is very large or if the output shaft 2 is restrained, the motor body 1 will be rotationally driven by its own torque. When the load on the output shaft 2 decreases, the rotation speed of the motor body 1 itself decreases, and the rotation speed of the output shaft 2 increases. Such characteristics of the present mechanism can be utilized for various purposes. For example, if the supply reel side of a tape recorder is rotationally driven by the output shaft 2, and the take-up reel side is rotationally driven by the motor body 1, one motor can perform two roles. Become. In this case, by adjusting the braking force applied to the motor body 1 and the output shaft 2, fast forwarding and rewinding operations become possible. Furthermore, switching between positive and negative allows for reversal. Furthermore, when used as a drive mechanism for toy wheels, the rotation speed of the left and right wheels can be adjusted, so it can also be used as a substitute for a differential gear. This mechanism can be applied to various other uses.

[Effect of idea]

As mentioned above, this invention can perform the functions of two motors by holding the motor in an unfixed state, and has the effect of obtaining a wide variety of rotational torque, making it suitable for a variety of applications. It is applicable.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention in principle, and FIGS. 2 and 3 are views showing other embodiments. Explanation of symbols, 1...Motor body, 2...Output shaft, 3...Frame, 3a, 3b, 3c...Rising wall, 4, 5...Bearing, 6, 7...Slip ring, 8, 9... ...Lead wire, 10...Output tube.

Claims (1)

[Scope of utility model registration request] By floating and disposing the motor body 1 between the rising walls 3b and 3c of the inverted E-shaped frame 3, and supporting the output shaft 2 of the motor body 1 with bearings 4 and 5 installed on the rising walls 3a and 3b. A differential drive mechanism in which slip rings 6 and 7 are attached to the inner surfaces of rising walls 3b and 3c to support the motor body and supply drive current in contact with the rotating stator and rotor.